Field pea blackspot management guide for NSW - 15 April

Page last updated: Friday, 26 April 2019 - 10:25am

Field Pea Blackspot Management Guide is a location and season specific weekly forecast. It accounts for varietal resistance and chemical options, agronomic yield potentials, agronomic constraints (frost and terminal drought), risks of spores showers, disease severity, and disease related yield loss. It then weighs agronomic yield loss and disease yield loss and suggests a window of sowing dates. Field pea crops should be sown so that the majority of blackspot spores (approximately 60%) have been released prior to the crop emergence.

This prediction is based on DPIRD's Blackspot Manager model using weather data from 1 January 2019 to 14 April 2019 from the nearest weather station.

Key to blackspot severity scores

Percentage yield loss (in years) for different levels of blackspot risk scenarios

Blackspot risk

5 out of 10 years

3 out of 10 years

1 out of 10 years

Low

2

5

15

Medium

20

25

35

High

25

30

50

Cootamundra

Rainfall to date: 168.1mm     Days with significant stubble moisture: 54

Forecast for crops sown on

14 Apr

21 Apr

28 Apr

Blackspot severity

2

2

1

Sowing guide (based on agronomic suitability)

Too early to sow - before the 19th May

Too early to sow - before the 19th May

Too early to sow - before the 19th May

Blackspot risk

Low

Low

Low

Griffith

Rainfall to date: 60.2mm     Days with significant stubble moisture: 33

Forecast for crops sown on

14 Apr

21 Apr

28 Apr

Blackspot severity

5

5

3 to 4

Sowing guide (based on agronomic suitability)

Too early to sow - before the 5th May

Too early to sow - before the 5th May

Too early to sow - before the 5th May

Blackspot risk

High

High

Medium

Temora

Rainfall to date: 161.9mm     Days with significant stubble moisture: 44

Forecast for crops sown on

14 Apr

21 Apr

28 Apr

Blackspot severity

3 to 4

3 to 4

2

Sowing guide (based on agronomic suitability)

Too early to sow - before the 12th May

Too early to sow - before the 12th May

Too early to sow - before the 12th May

Blackspot risk

Medium

Medium

Low

Wagga Ag Institute

Rainfall to date: 80.3mm     Days with significant stubble moisture: 53

Forecast for crops sown on

14 Apr

21 Apr

28 Apr

Blackspot severity

2

2

1

Sowing guide (based on agronomic suitability)

Too early to sow - before the 19th May

Too early to sow - before the 19th May

Too early to sow - before the 19th May

Blackspot risk

Low

Low

Low

For more information contact Dr Kurt Lindbeck at NSW DPI on ph +61 (0)2 6938 1608.

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Contact information

Jean Galloway
+61 (0)8 9690 2172

Author

Kawsar Salam

Funding bodies